Not sure if my eyes are playing tricks on me, but I feel like the letters are more horizontally aligned in the bottom version. Either way, I would make the "a" a little wider and rounder to match more with the other letters. Over all it's a pretty fun, legible font.
Also, kerning is the distance between two letters. (And tracking is the letter spacing for a whole block of text, in case you ever see that term. They're easy to confuse.)